Business 2.0: Imagine plunking down $100,000 and walking away with your very own supercomputer. The low-cost computing revolution means you can now get that result with a handful of off-the-shelf components. By lashing a cluster of 32 blade servers together with an inexpensive switch, any business can harness the kind of power — more than 150 gigaflops — once reserved for government agencies and aerospace giants.